## alyssababy7 Group Title Find the exact value of the expression. Do not use a calculator. If tan θ = 9, find the exact value of cot (pi/2 - θ) one year ago one year ago

1. alyssababy7

A. 8 B. 10 C. 1/9 D. 9

2. satellite73

don't be fooled, it is the cofunction identity $\cot(\frac{\pi}{2}-\theta)=\tan(\theta)$

3. satellite73

therefore if $$\tan(\theta)=9$$ you know $$\cot(\frac{\pi}{2}-\theta)=9$$ also

4. alyssababy7

thank you

5. amruta1997

its d) 9

6. amruta1997

yes

7. amruta1997

too simple